netdev - Re: [PATCH v2] tcp: identify cryptic messages as TCP seq # bugs

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Date:   Tue, 17 Jul 2018 22:03:32 -0700
From:   Eric Dumazet <eric.dumazet@...il.com>
To:     Randy Dunlap <rdunlap@...radead.org>,
        "netdev@...r.kernel.org" <netdev@...r.kernel.org>,
        Eric Dumazet <edumazet@...gle.com>,
        David Miller <davem@...emloft.net>
Cc:     積丹尼 Dan Jacobson <jidanni@...anni.org>
Subject: Re: [PATCH v2] tcp: identify cryptic messages as TCP seq # bugs



On 07/17/2018 06:27 PM, Randy Dunlap wrote:
> From: Randy Dunlap <rdunlap@...radead.org>
> 
> Attempt to make cryptic TCP seq number error messages clearer by
> (1) identifying the source of the message as "TCP", (2) identifying the
> errors as "seq # bug", and (3) grouping the field identifiers and values
> by separating them with commas.
> 
> E.g., the following message is changed from:
> 
> recvmsg bug 2: copied 73BCB6CD seq 70F17CBE rcvnxt 73BCB9AA fl 0
> WARNING: CPU: 2 PID: 1501 at /linux/net/ipv4/tcp.c:1881 tcp_recvmsg+0x649/0xb90
> 
> to:
> 
> TCP recvmsg seq # bug 2: copied 73BCB6CD, seq 70F17CBE, rcvnxt 73BCB9AA, fl 0
> WARNING: CPU: 2 PID: 1501 at /linux/net/ipv4/tcp.c:2011 tcp_recvmsg+0x694/0xba0
> 
> Suggested-by: 積丹尼 Dan Jacobson <jidanni@...anni.org>
> Signed-off-by: Randy Dunlap <rdunlap@...radead.org>

Thanks Randy

Signed-off-by: Eric Dumazet <edumazet@...gle.com>